21023128

素因数分解:

$2^3\times 7^1\times {\mathrm{375413}}^1$

素因数の和:375426

約数の個数: 16

約数和(自身を含む): 45049680

約数和(自身を除く): 24026552

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 375413, 750826, 1501652, 2627891, 3003304, 5255782, 10511564, 21023128]

約数ペア:

[(1, 21023128), (2, 10511564), (4, 5255782), (7, 3003304), (8, 2627891), (14, 1501652), (28, 750826), (56, 375413)]